634744 has 16 divisors (see below), whose sum is σ = 1298520. Its totient is φ = 288480.

The previous prime is 634741. The next prime is 634747. The reversal of 634744 is 447436.

It is an interprime number because it is at equal distance from previous prime (634741) and next prime (634747).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3519 + ... + 3694.

2⁶³⁴⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

634744 is an abundant number, since it is smaller than the sum of its proper divisors (663776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634744 is a wasteful number, since it uses less digits than its factorization.

634744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7230 (or 7226 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 634744 is about 796.7082276467. The cubic root of 634744 is about 85.9408282347.

It can be divided in two parts, 634 and 744, that added together give a triangular number (1378 = T₅₂).

The spelling of 634744 in words is "six hundred thirty-four thousand, seven hundred forty-four".